Are Sync Engines The Future of Web Applications?

• todo-replicache-sveltekit

  3 19 6.0 TypeScript

  Todo MVC with Replicache and Sveltekit

  Look at the GIF below — it shows a real-time Todo-MVC demo, syncing across windows and smoothly transitioning in and out of offline mode. While it’s just a simple demo app, it showcases important, cutting-edge concepts that every web developer should know. This is a Replicache demo app that I ported from an Express backend and web components frontend to SvelteKit to learn about the technology and concepts behind it. I want to share my learnings with you. The source code is available on Github.

• SaaSHub

  www.saashub.com featured

  SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

  

• SvelteKit

  631 18,557 9.7 JavaScript

  web development, streamlined (by sveltejs)

  

  Sveltekit doesn't natively support WebSockets, and even though it does support server-sent events, it does so in a clumsy way. Express supports both nicely. As a result, I used svelte-sse for server-sent events. One somewhat annoying quirk I ran into is that since svelte-sse returns a Svelte store, which my app wasn't subscribing to (the app doesn't need to read the value, just to trigger a pull as I described above), the whole thing was just optimized away by the compiler. I was initially scratching my head about why messages were not coming through. I ended up having to implement a workaround for that behavior. I don't blame the author of the library; they assumed a meaningful value would be sent to the client, which is not the case with 'poke'.

• sveltekit-sse

  4 287 9.1 JavaScript

  Server Sent Events with SvelteKit

  Sveltekit doesn't natively support WebSockets, and even though it does support server-sent events, it does so in a clumsy way. Express supports both nicely. As a result, I used svelte-sse for server-sent events. One somewhat annoying quirk I ran into is that since svelte-sse returns a Svelte store, which my app wasn't subscribing to (the app doesn't need to read the value, just to trigger a pull as I described above), the whole thing was just optimized away by the compiler. I was initially scratching my head about why messages were not coming through. I ended up having to implement a workaround for that behavior. I don't blame the author of the library; they assumed a meaningful value would be sent to the client, which is not the case with 'poke'.

• undo

  2 37 3.6 TypeScript

  Undo Redo Manager (by rocicorp)

  

  I find version history and undo/redo super useful and desirable in apps with user-editable content. With regards to undo/redo there is an official package but it seems to lack support for the multiplayer usecase (which is where the problems come from). As for version-history, the Replicache documentation mentions "the concept of history" but suggests talking to them if the need arises. That makes me think it might not be straightforward to achieve. Another idea for a follow-up task.

• replicache

  4 1,002 0.0

  Realtime Sync for Any Backend Stack

  

  I find version history and undo/redo super useful and desirable in apps with user-editable content. With regards to undo/redo there is an official package but it seems to lack support for the multiplayer usecase (which is where the problems come from). As for version-history, the Replicache documentation mentions "the concept of history" but suggests talking to them if the need arises. That makes me think it might not be straightforward to achieve. Another idea for a follow-up task.

• replicache-yjs

  1 2 0.0 TypeScript

  Experiments with YJS

  

  Collaborative text editing - the existing conflict resolution approach won't work well for collaborative text editing, which requires CRDTs or OT. I wonder how easy it would be to integrate Replicache with something like Yjs. There is an official example repo, but I haven't looked into it yet.

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